In: Statistics and Probability
A county library in Minnesota reported the following number of
books checked out in 15 randomly selected months:
5,176 6,005 5,052 5,310 4,188 4,132 5,736 5,381 4,983 4,423 5,002
4,573 4,209 5,611 4,568
Determine the range, variance, and standard deviation for the
sample data.
solution:-
given values are
5176,6005,5052,5310,4188,4132,5736,5381,4983,4423,5002,4573,4209,5611,4568
range :-
The lowest value is 4132
The highest value is 6005
The range = 6005 - 4132 = 1873
variance = 350882.4
explanation
standard deviation :-
sqrt(variance) = sqrt(350882.4)
= 592.35